Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:59
General
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Target
a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b.exe
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Size
517KB
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MD5
0d0d474a1e1a09a0d9d5e8f375438475
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SHA1
6e7ddc644600681ea16847191d2fe2b16375f0a7
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SHA256
a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b
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SHA512
3d3a0017253463cd45a1d38a28e02276f72a8d2cf073a7b49c40251ed63e59f3e56efbe7becf3b623f8d4b24d3047aa8dc536b95937a1a6ef044fe771863402a
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 3 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Drops file in System32 directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of FindShellTrayWindow 4 IoCs
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Suspicious use of SendNotifyMessage 4 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Users\Admin\AppData\Local\Temp\a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b.exe"C:\Users\Admin\AppData\Local\Temp\a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\DpiSdVol\bitsuser.exe"C:\Users\Admin\AppData\Roaming\DpiSdVol\bitsuser.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\~3553.tmp"C:\Users\Admin\AppData\Local\Temp\~3553.tmp"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde3⤵
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C:\Windows\SysWOW64\srdeheme.exeC:\Windows\SysWOW64\srdeheme.exe -k1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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MD5
fd28ee7da4b9307e071efbd8b625795f
SHA1a43bffa92ef4e0d4141327e5317d30bebfc123f7
SHA25633c6ba5fff016036a33a0ce142bfccda861149341d5c3d5967bbfa883fa7c6fb
SHA5129d1fb27d4b413b0bbadae8e6cb62bcaf9e71f17599c31e168a3e7b529e9e5d3c202fe26c4de2dbae40268ca448038b933e6195e0dbc240b7ddf0eb0b1aa4ea92
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MD5
95e6b839210f262edcb1724c178105ff
SHA119579a71ea56c175a44f0b9e00d5c9a714f5ff44
SHA256c108508a7537e587886b6172936f1322e2fe8e0159b08ee9ebb78080aa6330b7
SHA51216831f59bff48224c38201903661cc2c33891c08d865191d20b9e7f8082793571f37cbee18a5efdc020a526c9490a644037ad1aa43d8d2771783d0e99c669ce9
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MD5
95e6b839210f262edcb1724c178105ff
SHA119579a71ea56c175a44f0b9e00d5c9a714f5ff44
SHA256c108508a7537e587886b6172936f1322e2fe8e0159b08ee9ebb78080aa6330b7
SHA51216831f59bff48224c38201903661cc2c33891c08d865191d20b9e7f8082793571f37cbee18a5efdc020a526c9490a644037ad1aa43d8d2771783d0e99c669ce9
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MD5
0d0d474a1e1a09a0d9d5e8f375438475
SHA16e7ddc644600681ea16847191d2fe2b16375f0a7
SHA256a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b
SHA5123d3a0017253463cd45a1d38a28e02276f72a8d2cf073a7b49c40251ed63e59f3e56efbe7becf3b623f8d4b24d3047aa8dc536b95937a1a6ef044fe771863402a
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MD5
0d0d474a1e1a09a0d9d5e8f375438475
SHA16e7ddc644600681ea16847191d2fe2b16375f0a7
SHA256a8f2b434dddca07d7e6961d8f3397d9b4fc229411bf5c6cf456db0b12cc1f81b
SHA5123d3a0017253463cd45a1d38a28e02276f72a8d2cf073a7b49c40251ed63e59f3e56efbe7becf3b623f8d4b24d3047aa8dc536b95937a1a6ef044fe771863402a
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MD5
fd28ee7da4b9307e071efbd8b625795f
SHA1a43bffa92ef4e0d4141327e5317d30bebfc123f7
SHA25633c6ba5fff016036a33a0ce142bfccda861149341d5c3d5967bbfa883fa7c6fb
SHA5129d1fb27d4b413b0bbadae8e6cb62bcaf9e71f17599c31e168a3e7b529e9e5d3c202fe26c4de2dbae40268ca448038b933e6195e0dbc240b7ddf0eb0b1aa4ea92
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MD5
95e6b839210f262edcb1724c178105ff
SHA119579a71ea56c175a44f0b9e00d5c9a714f5ff44
SHA256c108508a7537e587886b6172936f1322e2fe8e0159b08ee9ebb78080aa6330b7
SHA51216831f59bff48224c38201903661cc2c33891c08d865191d20b9e7f8082793571f37cbee18a5efdc020a526c9490a644037ad1aa43d8d2771783d0e99c669ce9
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MD5
95e6b839210f262edcb1724c178105ff
SHA119579a71ea56c175a44f0b9e00d5c9a714f5ff44
SHA256c108508a7537e587886b6172936f1322e2fe8e0159b08ee9ebb78080aa6330b7
SHA51216831f59bff48224c38201903661cc2c33891c08d865191d20b9e7f8082793571f37cbee18a5efdc020a526c9490a644037ad1aa43d8d2771783d0e99c669ce9
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Filesize
8KB
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Filesize
596KB
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Filesize
268KB
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Filesize
596KB
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Filesize
256KB